Machine



(No Model.) R. FREITAG.

EMBROIDERING MACHINE.

prf 1. 1884.

Patented FETCH.

'Barnier l ROBERT FREITAG, OF JERSEY CITY, NEW JERSEY.

EiweRoiDEmNe-lvlAci-HNE.

SPECIFICATION forming part of Letters Patent No. 295,917, dated April l, 1884.

Application tiled September 2D, i853. (No modem.

To all whom, it may concern,.-

Be it known that I, ROBERT FREITAG, of J ersey City, in 'the county of Hudson and State of New Jersey, have invented a certain new and useful Improvement in EmbroideryMa chines, of which the following is a specification.

This improvementrelates `to embroiderymachines in which the material` to be embroidered is placed in a frame which may loe` movedthrough a pantographic or other suitable mechanism relatively to series of needles by moving a tracer'or tracing-point over a pattern. l

The object ot' the improvement is to enable more embroidery to' be done in a machine of given dimensions than heretofore has been possible.

I will describe in detail a mechanism embodying my improvement, and then point out y the improvement in claims.

In the accompanying drawings. Figure l is 'a face view of `a frame provided with mechanism embodying my improvement. Fig. 2 is a longitudinal section of the same. Fig. 3 is a transverse section of the same. Fig. 4 is a transverse section of a roller, which is included in the mechanism of the frame; and Fig. 5 is a transverse section of another kind of roller, 'which may be used in the mechanism ofthe frame.

Similar letters of reference designate corresponding parts in all the figures. A designates a frame, which may of metal, and is of rectangular form.

' B designates a number ot' rollers, which are be made journaled in the outer longitudinal bars, a, of I the frame, and C designates a corresponding number of rollers, which are journaled in the inner longitudinal bars, b, of theframe. The bearings for the journals of the rollers B arenot adjustable relatively to the frame A, but are affixed to the outer longitudinal bars, a, of the latter.. These rollers have affixed to them worm-gear wheels B', that engage with a worm, B2, extending lengthwise of theframe, and journaled in the cross-bars c of the frame. The worm B2 is `provided with a crank, B3, whereby it may be turned to effect the rotation ofthe rollersB. The rollers C arejournaled in bearings C C2, that are dovetailed into the inner longitudinal bars, b, of the frame, so that they may be moved along the same. VThe bearings C have rigidly securedfto them a rod, C3, and the bearings Cl have rigidly secured to them a rod, C4. The rods C C* are supported in the cross-bars c of the frame A, so that they may be slid longitudinally through the same. They have, however, no rotary movement. At the outer ends they are screwthreaded, and have applied to them nuts C, which have collars that connect them to the cross-bars c of the frame A, but which can be turned relatively to the frame and to the rods, so as to move the rods longitudinally. The nuts may be connected together by a chain, so that when onel is turned the other will derive motion therefrom, and both rods C3 C4 and both sets of bearings C C2 will be adj usted in unison. The bearings for the rollers 7C B C severally have the outer section hinged at y one end to the basesection, and secured at the other end by a pin passing through it and through the base-section. The rollers B C are therefore removable at pleasure. The'bodies of the rollers B and C, as shown in Fig. 4, severally have fiat opposite portions d,to which are iitted segmental portionse, whose outer surfaces are coincident with the circular portions of the bodies of the rollers. The segmental portions e have conical pins f inserted in them from the back or inner flat sides, and are fastened to the bodiesofthe rollers by screws or otherwise. In this way the pins f are very effectively secured to the rollers, and 85 in such manner that they can be easily removed and renewed. f

On each of the rollers C a piece of fabric to be embroidered is wound. This may be done while the roller is removed from its bearings, and the roller, with the fabric wound upon it, is then replaced in its bearings. The end ot' the piece of fabric on each roller C is then unwound and fastened to the companion roller B by impaling it upon the pins f thereof. -95 The several pieces ol' fabric will then extend between the several rollers C and their companion rollers B, and in order to put the necessary tension upon such portions of the fabric as extend between the rollers, the nuts C6 are 10o operated to move the bearings of all therollers C slightly away from the rollers B. The

frame is then moved by means of a pantographic system of levers, or otherwise, to cause the needles of the machine to produce the desired pattern upon the several stretched portions of fabric. After those portions of the fabric are embroidered, the worm or screw B2 1s operated to turn all the rollers B and to draw from the rollers C the fabric wound thereon; and the nuts C are again operated to put the desired tension on the portions of fabric between the rollers B and the rollers C. rlhe portions of fabric last drawn off from the :rollers G are then embroidered. After all the fabric has been unwound from the rollers C and wound on the rollers B, the latter rollers are removed from the frame and the embroidered fabric unwound from them.

In Fig. 5 I have represented a roller, G7, in connection with a clamping-bar, C8, in lieu of the rollers C. In this example of my invention the fabric is not wound on the roller C7, but is folded or laid, as shown. rlhe fabric is passed between the roller C7 and clampingbar Gi, and its end is attached to the companion roller B. The clamping-baris then pressed on the roller CT by screws or otherwise, so as to clamp the fabric, and the nuts C are oper ated to put tension on the portions of fabric between the rollers B and Cl, after which such stretched portions of the fabric are embroidered. The clampingbar C8 is then loosened and the rollers B are operated to draw forward more fabric, after which the fabric is clamped and then put under tension, as be-v fore described.

Vhat I claim as my invention, and desire to secure by Letters Patent, is-1 l. The combination, with a frame for an embroiderymachine, of a number of pairs of rollers journaled therein, and means for connecting the rollers of the several pairs so that they may be rotated simultaneously to unwind the fabric from one roller of Veach pair and wind it upon the other roller of each pair, substantially as described. y

2. The combination, with a frame for an embroidery-machine, of a number of pairs of rollers, means whereby corresponding rollers of the several pairs may be simultaneously rotated to wind the fabric upon them, and means whereby the other rollers of the several pairs may be moved bodily to put tension on the fabric, substantially as described.

3. The combination, with the frame A, of the several pairs of rollers B C, the rollers B being provided with worm-wheels B, and the worm or screw B2, engaging with all said wormwheels, 4substantially as described.

4. rIlhe combination, with the frame A, of the several pairs of rollers B C, the bearings C' C2 for the rollers C, the longitudinal bars b, the rods Cs C", connecting said bearings, and the nuts C, substantially as described.

ROBERT FREITAG.

Titnessesz SAMUEL W. Wnrss, G. ARNOLD MosEs. 

